The 36-year old Egyptian, who initially weighed 500kg, was said to be making progress according to reports.

Announcing her demise, the Burjeel Hospital issued a statement saying, "Eman Abdul Atti, once known as the 'world's heaviest woman' passed away on Monday, 25 September 2017 at 04:35 am due to complications from the underlying comorbid conditions including heart disease and kidney dysfunction according to medical experts."

The 36-year-old was flown to Mumbai on February 10 in a specialised logistical operation. On March 7, she underwent bariatric surgery at the city’s Saifee Hospital. She was put on a special liquid diet to reduce her weight enough so that doctors could perform bariatric surgery.

Ahmed, who weighed about 500 kg before undergoing the surgery in Mumbai, shed an astonishing 323 kg since undergoing a series of medical procedures.

Since Eman reached Burjeel Hospital in Abu Dhabi from Mumbai's Saifee Hospital, a team of more than 20 healthcare professionals has put in a treatment plan divided into three stages.

Eman suffered from kidney dysfunction and heart disease that worsened her condition in the last few days. “She had been under the supervision of 20 doctors from different specialties,” a hospital official said.

She was admitted to an Abu Dhabi hospital in May to undergo long-term physical and psychological rehabilitation after a drastic weight-loss operation in India.

Eman, who weighed around 500 kg, suffered from a rare thyroid condition since childhood.

She breathed her last early today morning.

“We offer our prayers and sincere condolences to the family of the deceased," the hospital added.